Three monsters, Bem, who looks like a gangster, Bero, who looks like a boy, and Bera, a witch, act as agents of justice, hoping that they will be allowed to become human. Several episodes involve them protecting a young boy. The style of animation is fairly distinctive, and the storylines not without interest.

Three half-human, half-monster creatures named Bem, Bela and Belo battle evil creatures determined to take over the world. While these three friends normally resemble humans, they can transform into horrifying monsters with superpowers. By leading the battle against evil, Bem hopes that their valiant efforts will one day help him and his companions become completely human.

Épisodes spéciaux liés à la série animée Oretacha Youkai Ningen, qui suit les aventures de trois yokai.